Seller: mikeyd818 ✉️ (2,246) 100%, Location: Waupaca, Wisconsin, US, Ships to: US & many other countries, Item: 354511393694 Set of 2 Antique National Mfg. Co.'s "Big 4" Barn Door Roller Brackets Pair . Antique Pair of original National Mfg. Co.'s "Big 4" Barn Door Roller Brackets. They are both in excellent condition. Pulley berrings are nice and tight...no play or wobble. They both roll freely. Brackets are super straight. Both have the original locking tabs. Original embossed tags. They measure about 6"X10". Please see pics for condition. Thanks! Type: Rollers, Color: Black, Decade: Unknown, Style: American, Original/Reproduction: Vintage Original, Material: Steel, Features: Salvage, Maker: National Mfg.